Tuesday, February 14, 2012
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Opioid Dependence Learning Center

Opioids are a class of drugs that include both natural and synthetic substances. The natural opioids (referred to as opiates) include opium and morphine. Heroin, the most abused opioid, is synthesized from opium. Other synthetics (only made in lab...
Source:Gale Encyclopedia of Mental Disorders
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